Photocatalytic activity of Cr-doped TiO(2) nanoparticles deposited on porous multicrystalline silicon films

This work deals with the deposition of Cr-doped TiO(2) thin films on porous silicon (PS) prepared from electrochemical anodization of multicrystalline (mc-Si) Si wafers. The effect of Cr doping on the properties of the TiO(2)-Cr/PS/Si samples has been investigated by means of X-ray diffraction (XRD)...

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Autores principales: Hajjaji, Anouar, Trabelsi, Khaled, Atyaoui, Atef, Gaidi, Mounir, Bousselmi, Latifa, Bessais, Brahim, El Khakani, My Ali
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Springer 2014
Materias:
Nano Express
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4194057/
https://www.ncbi.nlm.nih.gov/pubmed/25313302
http://dx.doi.org/10.1186/1556-276X-9-543
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author Hajjaji, Anouar
Trabelsi, Khaled
Atyaoui, Atef
Gaidi, Mounir
Bousselmi, Latifa
Bessais, Brahim
El Khakani, My Ali
author_facet Hajjaji, Anouar
Trabelsi, Khaled
Atyaoui, Atef
Gaidi, Mounir
Bousselmi, Latifa
Bessais, Brahim
El Khakani, My Ali
author_sort Hajjaji, Anouar
collection PubMed
description This work deals with the deposition of Cr-doped TiO(2) thin films on porous silicon (PS) prepared from electrochemical anodization of multicrystalline (mc-Si) Si wafers. The effect of Cr doping on the properties of the TiO(2)-Cr/PS/Si samples has been investigated by means of X-ray diffraction (XRD), atomic force microcopy (AFM), photoluminescence, lifetime, and laser beam-induced current (LBIC) measurements. The photocatalytic activity is carried out on TiO(2)-Cr/PS/Si samples. It was found that the TiO(2)-Cr/PS/mc-Si type structure degrades an organic pollutant (amido black) under ultraviolet (UV) light. A noticeable degradation of the pollutant is obtained for a Cr doping of 2 at. %. This result is discussed in light of LBIC and photoluminescence measurements.
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spelling pubmed-41940572014-10-13 Photocatalytic activity of Cr-doped TiO(2) nanoparticles deposited on porous multicrystalline silicon films Hajjaji, Anouar Trabelsi, Khaled Atyaoui, Atef Gaidi, Mounir Bousselmi, Latifa Bessais, Brahim El Khakani, My Ali Nanoscale Res Lett Nano Express This work deals with the deposition of Cr-doped TiO(2) thin films on porous silicon (PS) prepared from electrochemical anodization of multicrystalline (mc-Si) Si wafers. The effect of Cr doping on the properties of the TiO(2)-Cr/PS/Si samples has been investigated by means of X-ray diffraction (XRD), atomic force microcopy (AFM), photoluminescence, lifetime, and laser beam-induced current (LBIC) measurements. The photocatalytic activity is carried out on TiO(2)-Cr/PS/Si samples. It was found that the TiO(2)-Cr/PS/mc-Si type structure degrades an organic pollutant (amido black) under ultraviolet (UV) light. A noticeable degradation of the pollutant is obtained for a Cr doping of 2 at. %. This result is discussed in light of LBIC and photoluminescence measurements. Springer 2014-10-02 /pmc/articles/PMC4194057/ /pubmed/25313302 http://dx.doi.org/10.1186/1556-276X-9-543 Text en Copyright © 2014 Hajjaji et al.; licensee Springer. http://creativecommons.org/licenses/by/4.0 This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly credited.
spellingShingle Nano Express
Hajjaji, Anouar
Trabelsi, Khaled
Atyaoui, Atef
Gaidi, Mounir
Bousselmi, Latifa
Bessais, Brahim
El Khakani, My Ali
Photocatalytic activity of Cr-doped TiO(2) nanoparticles deposited on porous multicrystalline silicon films
title Photocatalytic activity of Cr-doped TiO(2) nanoparticles deposited on porous multicrystalline silicon films
title_full Photocatalytic activity of Cr-doped TiO(2) nanoparticles deposited on porous multicrystalline silicon films
title_fullStr Photocatalytic activity of Cr-doped TiO(2) nanoparticles deposited on porous multicrystalline silicon films
title_full_unstemmed Photocatalytic activity of Cr-doped TiO(2) nanoparticles deposited on porous multicrystalline silicon films
title_short Photocatalytic activity of Cr-doped TiO(2) nanoparticles deposited on porous multicrystalline silicon films
title_sort photocatalytic activity of cr-doped tio(2) nanoparticles deposited on porous multicrystalline silicon films
topic Nano Express
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4194057/
https://www.ncbi.nlm.nih.gov/pubmed/25313302
http://dx.doi.org/10.1186/1556-276X-9-543
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